/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.geode.internal.offheap;

import org.apache.geode.Statistics;

/**
 * Null implementation of OffHeapMemoryStats for testing.
 *  
 */
public class NullOffHeapMemoryStats implements OffHeapMemoryStats {
  private boolean isClosed;

  public void incFreeMemory(long value) {
  }
  public void incMaxMemory(long value) {
  }
  public void incUsedMemory(long value) {
  }
  public void incSlabSize(long value) {
  }
  public void incObjects(int value) {
  }

  public long getFreeMemory() {
    return 0;
  }
  public long getMaxMemory() {
    return 0;
  }
  public long getUsedMemory() {
    return 0;
  }
  public long getSlabSize() {
    return 0;
  }
  public int getObjects() {
    return 0;
  }
  @Override
  public void incReads() {
  }
  @Override
  public long getReads() {
    return 0;
  }
  @Override
  public int getDefragmentations() {
    return 0;
  }
  @Override
  public int getDefragmentationsInProgress() {
    return 0;
  }
  @Override
  public void setFragments(long value) {
  }
  @Override
  public long getFragments() {
    return 0;
  }
  @Override
  public void setLargestFragment(int value) {
  }
  @Override
  public int getLargestFragment() {
    return 0;
  }
  @Override
  public long startDefragmentation() {
    return 0;
  }
  @Override
  public void endDefragmentation(long start) {
  }
  @Override
  public void setFragmentation(int value) {
  }
  @Override
  public int getFragmentation() {
    return 0;
  }
  @Override
  public Statistics getStats() {
    return null;
  }
  @Override
  public long getDefragmentationTime() {
    return 0;
  }
  @Override
  public void close() {
    this.isClosed = true;
  }
  @Override
  public void initialize(OffHeapMemoryStats stats) {
    stats.close();
  }     
  
  public boolean isClosed() {
    return this.isClosed;
  }
}
